How can I access the nid of the current page so that a user can submit their comment and be returned back to the page they just commented from. Here's what I am proposing...
function mymodule_form_comment_form_alter(&$form, &$form_state) {
$nid = arg(2);
$form_state['redirect'] = 'mymodule/' . $nid;
}
...to be placed in template.php
. However using $node -> nid
(referenced in comment.module) or $nid
(referenced in my custom module) throws an undefined error. How can I access the nid to complete my redirecting URL? Or is there a better way of acheiving this?
I believe this is the part of comment.module that I need to hook into and modify - so in a wider sense my question is about hooking into a core module and modifying its function:
/**
* Process comment form submissions; prepare the comment, store it, and set a redirection target.
*/
function comment_form_submit($form, &$form_state) {
$node = node_load($form_state['values']['nid']);
$comment = comment_form_submit_build_comment($form, $form_state);
if (user_access('post comments') && (user_access('administer comments') || $node->comment == COMMENT_NODE_OPEN)) {
// Save the anonymous user information to a cookie for reuse.
if (user_is_anonymous()) {
user_cookie_save(array_intersect_key($form_state['values'], array_flip(array('name', 'mail', 'homepage'))));
}
comment_save($comment);
$form_state['values']['cid'] = $comment->cid;
// Add an entry to the watchdog log.
watchdog('content', 'Comment posted: %subject.', array('%subject' => $comment->subject), WATCHDOG_NOTICE, l(t('view'), 'comment/' . $comment->cid, array('fragment' => 'comment-' . $comment->cid)));
// Explain the approval queue if necessary.
if ($comment->status == COMMENT_NOT_PUBLISHED) {
if (!user_access('administer comments')) {
drupal_set_message(t('Your comment has been queued for review by site administrators and will be published after approval.'));
}
}
else {
drupal_set_message(t('Your comment has been posted.'));
}
$query = array();
// Find the current display page for this comment.
$page = comment_get_display_page($comment->cid, $node->type);
if ($page > 0) {
$query['page'] = $page;
}
// Redirect to the newly posted comment.
$redirect = array('node/' . $node->nid, array('query' => $query, 'fragment' => 'comment-' . $comment->cid));
}
else {
watchdog('content', 'Comment: unauthorized comment submitted or comment submitted to a closed post %subject.', array('%subject' => $comment->subject), WATCHDOG_WARNING);
drupal_set_message(t('Comment: unauthorized comment submitted or comment submitted to a closed post %subject.', array('%subject' => $comment->subject)), 'error');
// Redirect the user to the node they are commenting on.
$redirect = 'node/' . $node->nid;
}
$form_state['redirect'] = $redirect;
// Clear the block and page caches so that anonymous users see the comment
// they have posted.
cache_clear_all();
}
Thanks.
$nid = arg(1);
. What do you mean when you say "that didn't seem to work"?